Javelin or harpoon (5)
I believe the answer is:
spear
I believe this clue is a double definition.
'javelin' is the first definition.
(I've seen this before)
'harpoon' is the second definition.
(synonyms)
(Other definitions for spear that I've seen before include "Spike" , "Sharp weapon" , "Primitive weapon" , "Portion of asparagus" , "A bit of asparagus" .)